Dr. James I. Stubblefield, MD

  • Monterey, CA
  • Emergency medicine physician
NPI1598768053PAC ID1052313533
Medicare services, 2024
120
Medicare patients, 2024
81
Part D claims, 2024
111
MIPS score, 2024
85
Hospital affiliations
1
Practice address
100 Wilson Rd, Monterey, CA 93940
Practice phone
Call (831) 422-7777
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Doctors on Duty

Urgent Care Center · Monterey, California

See all 4 affiliations

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Dr. James I. Stubblefield is an emergency medicine physician in Monterey, California

Dr. Stubblefield practices at Doctors on Duty in Monterey, California.

Dr. Stubblefield's NPI, 1598768053, was assigned on May 27, 2005. Dr. Stubblefield graduated from Drexel University College Of Medicine in 1982. Dr. Stubblefield holds California license A47950.

NPI and contact details
Medicare PAC ID
1052313533
NPI enumeration date
May 27, 2005
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(831) 422-7777
Professional email
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Personal email
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Mobile number
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Sex
Male
Estimated age
70
Medical school graduation
1982

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. James I. Stubblefield practices at Doctors on Duty in Monterey, California

Dr. Stubblefield's primary practice is Doctors on Duty, at 100 Wilson Rd, Monterey, CA 93940. The practice phone is (831) 422-7777.

  • Doctors on Duty
    100 Wilson Rd, Monterey, CA 93940Phone(831) 422-7777

Source: Dmand AI Affiliation Data

Dr. James I. Stubblefield is affiliated with 2 sites of care and 2 medical groups

Dr. Stubblefield's primary practice is Doctors on Duty in Monterey, California. Dr. Stubblefield is also affiliated with Salinas Valley Health Medical Center. The medical group on file is Vituity. Dmand AI also links Dr. Stubblefield to 1 more medical group, named with a free account. Dr. Stubblefield's employer is on file too: an urgent care center.

See all 4 affiliations for Dr. Stubblefield

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Dr. James I. Stubblefield's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Stubblefield practices, 2 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Doctors on DutyAvailable with a free account
+1 more site and 1 medical groupAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. James I. Stubblefield is one of 7,423 emergency medicine physicians in California

Emergency medicine is Dr. Stubblefield's primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dmand AI has Dr. Stubblefield's licenses on file in 4 states: California, Pennsylvania, Tennessee and Washington.

Specialties and state licenses

  • Emergency medicine, CaliforniaPrimaryLicense A47950 · 1990 to 2027 · taxonomy 207P00000X
  • Pennsylvania license1985 to 2026
  • Tennessee license1987 to 1992
  • Washington license1987 to 1990

Emergency medicine physicians near Dr. Stubblefield

Counts of emergency medicine physicians with a Dmand AI profile, by place and practice. Each opens the list.

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks

Dr. James I. Stubblefield billed Medicare for 120 services in 2024

CMS data shows 120 Medicare services from Dr. Stubblefield across 6 procedure codes in 2024, for 81 Medicare patients. Medicare paid $7,791 for them. Every service was in an office.

Medicare services, 2024120
Medicare patients81
Paid by Medicare$7,791
Procedure codes6

Dr. Stubblefield's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Office and hospital visits
2023: 452024: 8384%
Lab and pathology
2023: 242024: 3754%

Dr. Stubblefield compared with the California median for emergency medicine physicians, 2024

  • Dr. Stubblefield
  • California median
Medicare services
120vs 26555% below
Medicare patients
81vs 24367% below
Part D claims
11vs 6282% below

Medians across 7,079 emergency medicine physicians in California with Dmand AI profiles that report each measure.

Dr. Stubblefield's most billed Medicare procedure codes, 2024

CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. James I. Stubblefield treated 81 Medicare patients in 2024, average age 72

CMS counts 81 Medicare patients who saw Dr. Stubblefield in 2024. The largest group is 65 to 74, with 46 patients. 74% of them have high cholesterol, and 72% have high blood pressure. 31% are also on Medicaid. Their average risk score is 0.94, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. Stubblefield's median patient age at 36, with 58% women.

Medicare patients, 202481
Average age72
Average risk score0.94
Also on Medicaid31%

Dr. Stubblefield's Medicare patients by age, 2024

CMS leaves out age groups with fewer than 11 patients.

Dr. Stubblefield's Medicare patients by sex, 2024

  • Women5062%
  • Men3138%

Chronic conditions among Dr. Stubblefield's Medicare patients, 2024

  1. High cholesterol74%
  2. High blood pressure72%
  3. Diabetes37%
  4. Arthritis30%
  5. Osteoporosis19%
  6. Chronic kidney disease17%
  7. Atrial fibrillation16%
  8. Anxiety15%

Share of Medicare patients with each condition. A patient can have several.

Dr. Stubblefield's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 36

Patient panel by sex, all payers

  • Women58%
  • Men42%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Dr. James I. Stubblefield wrote 111 Medicare Part D claims in 2024

In 2024, Dr. Stubblefield wrote 111 Medicare Part D claims for 53 patients. 92% of them were for generic drugs. CMS names the drug for 11 of them, across 1 drug with 11 or more claims each, at $25 in total drug cost. In 2023, CMS named 15 claims across 1 drug.

Part D claims, 2024111
Drugs named by CMS1
Total drug cost$25
Part D patients53

Dr. Stubblefield's Part D claims by kind of drug, 2024

  • Generic102 claims92%
  • Brand-name and other9 claims8%

Dr. Stubblefield's most prescribed drugs by claims, 2024

CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.

Drug classes CMS tracks in Dr. Stubblefield's Part D claims, 2024

  • Antibiotics29%32 of 111 claims

Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.

Part D claims for drugs CMS names, 2023 to 2024

  • 2023
  • 2024
Claims for drugs CMS names
2023: 152024: 1127%

Drugs named by CMS: 1 in 2024, 1 in 2023.

See all prescribing by Dr. Stubblefield

Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data

Dr. James I. Stubblefield scored 85 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 85 out of 100 for Dr. Stubblefield for performance year 2024, reported as part of a group. Dr. Stubblefield accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

Accepts Medicare assignment
Yes

Dr. Stubblefield's MIPS scores, performance year 2024

  • 85of 100Final score
  • 67.2of 100Quality
  • 100of 100Promoting Interoperability
  • 40of 100Improvement Activities
  • 68of 100Cost

Each score is out of 100. The final score weighs the categories CMS scored for this clinician.

Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026

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Dr. James I. Stubblefield has 15 awards and honors on record

Dmand AI lists 15 awards for Dr. Stubblefield, most recently MEDICAL DIRECTOR, DEPT EM in 2007. Dr. Stubblefield serves on California Bay Area Regional Trauma Care Committee.

Awards and honors for Dr. Stubblefield

  1. 2007
    • MEDICAL DIRECTOR, DEPT EM
  2. 2001
    • Humanitarian Award
  3. Undated
    • Air Assault Badge
    • Army Achievement Medal (2)
    • Army Commendation Medal
    • Army Service Ribbon
See all 15 awards

Dr. Stubblefield's committees and leadership roles

California Bay Area Regional Trauma Care CommitteeMonterey Representative
2008 to present
Emergency Medical Services Director's Association of CaliforniaMEMBER (EMDAC)
1994 to 2019

Source: Dmand AI Professional Profile Data

Dr. James I. Stubblefield graduated from Drexel University College Of Medicine

Dr. Stubblefield graduated from Drexel University College Of Medicine in 1982. Dr. Stubblefield is a member of ACEP.

  1. Medical schoolDrexel University College Of Medicine

Source: Dmand AI Professional Profile Data

Dr. James I. Stubblefield accepts plans from 6 insurance carriers

Dr. Stubblefield is in network with 6 carriers, including United Healthcare, Aspirus Health Plan and Blue Cross and Blue Shield of Kansas City. PPO plans come from the most carriers, 3. Check the plan with the practice before a visit.

  • United Healthcare
  • Aspirus Health Plan
  • Blue Cross and Blue Shield of Kansas City
  • CMS Medicare
  • Elevance
  • HCSC

Plan types Dr. Stubblefield accepts, by number of carriers

  1. PPO3
  2. Medicare2
  3. POS2
  4. EPO1
  5. HMO1

Source: Dmand AI Insurance Network Data

Sources for Dr. James I. Stubblefield's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab)
MIPS scores, telehealth, assignment and procedure percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)
Awards and committee rolesDmand AI Professional Profile Data
Training, board certification and membershipsDmand AI Professional Profile Data
Insurance carriers and plan typesDmand AI Insurance Network Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. James I. Stubblefield

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

What is Dr. James I. Stubblefield's NPI number?

Dr. James I. Stubblefield's NPI number is 1598768053. It was assigned on May 27, 2005, and it is active in the NPI Registry.

What kind of doctor is Dr. James I. Stubblefield?

Dr. James I. Stubblefield is an emergency medicine physician in Monterey, California. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).

Where does Dr. James I. Stubblefield practice?

Dr. Stubblefield practices at 100 Wilson Rd, Monterey, CA 93940. Dr. Stubblefield's primary practice is Doctors on Duty in Monterey, California. Dmand AI also links Dr. Stubblefield to 1 medical group.

What is Dr. James I. Stubblefield's office phone number?

The practice phone on file for Dr. Stubblefield is (831) 422-7777.

What is Dr. James I. Stubblefield's medical license number?

Dr. Stubblefield holds California license A47950, one of the licenses on file in 4 states.

Which states has Dr. James I. Stubblefield been licensed in?

Dmand AI has state licenses on file for Dr. Stubblefield in California (1990 to 2027), Pennsylvania (1985 to 2026), Tennessee (1987 to 1992) and Washington (1987 to 1990).

Which hospitals is Dr. James I. Stubblefield affiliated with?

Dr. Stubblefield is affiliated with Salinas Valley Health Medical Center.

What medical group is Dr. James I. Stubblefield part of?

Dr. Stubblefield is linked to Vituity. Dmand AI links Dr. Stubblefield to 1 more medical group.

Does Dr. James I. Stubblefield accept Medicare?

Yes. CMS data shows Dr. Stubblefield billed Medicare for 120 services in 2024, and Dr. Stubblefield accepts Medicare assignment.

What is Dr. James I. Stubblefield's MIPS score?

Dr. Stubblefield's MIPS final score for performance year 2024 is 85 out of 100, reported as part of a group.

Show 6 more questionsShow fewer questions

How many Medicare patients does Dr. James I. Stubblefield see?

CMS counts 81 Medicare patients who saw Dr. Stubblefield in 2024, with an average age of 72.

What services does Dr. James I. Stubblefield bill to Medicare?

In 2024, Dr. Stubblefield's most billed Medicare services were office visit, established patient (99214), lab and pathology test (87428) and office visit, established patient (99213).

Where did Dr. James I. Stubblefield go to medical school?

Dr. Stubblefield graduated from Drexel University College Of Medicine in 1982.

What drugs does Dr. James I. Stubblefield prescribe most?

In 2024 Medicare Part D data, Dr. Stubblefield's most prescribed drugs by claims were Sulfamethoxazole-Trimethoprim.

How long has Dr. James I. Stubblefield been practicing?

Dr. Stubblefield graduated from medical school in 1982, 44 years ago.

What insurance does Dr. James I. Stubblefield accept?

Dr. Stubblefield is in network with 6 carriers, including United Healthcare, Aspirus Health Plan and Blue Cross and Blue Shield of Kansas City. PPO plans come from the most carriers, 3. Check the plan with the practice before a visit.

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